把所有的：換成英文輸入狀態下的?:?就行了，下面是正確的代碼：
public?class?HelloWorld?{
????public?static?void?main(String[]?args)?{
????	char?today='六';
	????switch?(today){
????????case?'一':
????????case?'三':
????????case?'五':
????????????System.out.println("吃包子");
?????????????break;
????????case?'二':
????????case?'四':
????????case?'六':
????????????System.out.println("吃油條");
????????????break;
???????default:
????????????System.out.println("吃主席套餐");
????
	}	
??????}
}